US313103A - Wire-barbing machine - Google Patents

Description

4 Sheets-Sheet 1.

M. H. PITTS 8&1. R. WHITEMAN.

WIRE BARBING MAGHlNB. v

Patented Mar. 3, 1885..

(No Model.)

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l WIRE BARBING MACHINE. Y No. 313,103. Patented Mar. 3, 1885.

(No Model.) 4 Sheets-Sheet 3. M. H.`P1TTS 8c 1. R. WHITEMAN.

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No. 313,103. Patented Mar. 3, 1885.

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MARCELLUS H. PITTS AND ISRAEL R. VHTEMAN, OF MARSEILLES, ILLINDIS.

WIRE-BARBING VlACl-IlNE.

BPELFIGATMN forming part of Letters Patent No. 313,103, dated March 3, 1885.

Applicatioiftiled October 13, 1884. (No model.)

5 seilles, in the county ot' La Salle and State of Illinois, have invented certain new and useful Improvements in lVire-Barbing Machines, of which the following is a specification, ref` erenee being h ad therein-to the accompanying drawings. v i

Figurel is a top plan view. Fig. 2 is a side elevation. Fig. 3 is a cross-sectional View of the machine on line 1 of Fig. l, showing a side view of the barb-wirefeeding mechanism. Figs. 4 and 5 are perspective views of the barbing-wire friction-blocks. Fig. 6 is aoentral longitudinal section of the strand-wirecrossing mechanism. Fig. 7 is a cross-sectional View of the machine on line 2 ot' Fig.

l, showing a side view ot' the mechanism by means of which a pair of toothed racks are reciprocated vto oscillate the hooked fingers to weave the barb in between the twists ot" the strand-wires. Fig. S isa face view ofthe gearing of the strandwire-crossing mechanism. Fig. 9 is a face view of the pawl and ratchet and their immediate connecting parts ofthe strandwirecrossing mechanism, showing a cross-section oi' the head to which the pawl attaches, and which incloses the ratchetwheel. Fig. l() is a perspective View ot the head, which contains the barbwire cutters, and also the hooked fingers for weaving the barbs between the twists of Ithe strand-wires and their oscillating mechanism, and also shows said cutters and hooked fingers, and the racks and pinions for oscillatingl said iingers. Fig. ll is a perspective View ofa portion ofthe central part ot' said last-described head, showing guide-blocks for holding "the barbs'in proper position so they will be caught by the hooked iingers when said lingers oscillate. Fig. 12 is a side view of the outer end `ot` the cut-oil' lever, showing its form and the form of the cam which operates it to eut off a barb. Fig. 13 is a cross-section oi' the head which holds the euttingpunch, to show the manner in which it is held in said head. Fig. 14 is a plan View showing and locating the strand-wires, the barb, the hooked fingers, and the cutters, to show their relative positions, the dotted lines showing diiferent positions ofthe strand-wires and of the barb and of the hooked ngers as the barb is being woven between the twists ofthe strand-wires; and Fig. 15, a perspective view of a section of barbed wire such as is made by this machine, forming a twostrand twopointed wire barb.

This invention relates to certain improvements in Wirebarbing machines of that class which attaches a twopointed wire barb to two twisted strand-wires by weaving the barb be tween the twists of the strands in such manner that the body ot' the barb will pass between the twists of the strandwires between three separate consecutive twists or crosses ot the strands, leaving two prods to project from opposite sides of the strand-wires in opposite directions from each other, the barb when completed being somewhat otl the shape of the let ter S interwoven between or in three consecutive twists ot' thc two strand-wires.

Referring to the drawings, A represents the bed ofthe machine, mounted on suitable legs, A', and to which the parts are attached i'or supplying the strand-wires with barbs, and for taking up the strand-wires after they have been barbed, so they may enter the 'twister and be spooled.

Power is applied by a belt over pulley D of the twister-yoke.

At one side of pulley D, and keyed to the twister-yoke, is a spur-gear, G, which drives spur-wheel GiL of shaft B through the medium ot'an idler spur-gear, G, studded to bed A, and also drives spur-gear GH ol'l shaft S through the medium of said gears G and G2. The shaft B is supported a little above and near one side of bed A in suitable boxes, and has rigidly secured on its inner end a circular head, P, which rotates continuously with it close to the back of an annular gear, P. rlhe side of head P next the annular gear P is hollowed for the reception of a ratchet-wheel, P2, which is integral with and projects from the back of annular gear P. NYithin, attached to, and near the periphery of head F3 is a spring-pawl, l, having a rear extending arm arranged to project through an opening in head P3 when engaged with the ratchet-wheel' P2. This combined integral gearl) and ratchet-wheel I are sleeved on a short eoreshaft,

B, in such Inanner as to bear against the side of' spur-gear P, which is keyed to said coreshat at or about its center. Vhen coreshaft B has thus been provided with the parts described, its rear end is passed into hollow shaft B ot' the circulaiflanged head P: in such manner that ratchet-wheel P2 will be next to and within the liange of head P3, -so that springpawl P* will engage with the teeth ot' ratchetwheel P2, as shown in Fig. 6. (See also Figs. 8 and 9.) The shalt B is hollow and receives one end of and forms a bearing for said core'- shai't B to rotate in.

To core shaft B,and within the annular gear P, is keyed a spur-gear, P, having only onehalt' the number ot' teeth as gear P, and driven by annular gear P through the medium ofthe intermediateidlerpinions,P5and P. (Shown in Figs. 6 and 8.)

'To the outer extending end of coreshaft B is attached bysuitable cap-screws a plate, B3, having projecting from its t'acea pair ot' curved tubes which connect with openings extending through the length ot'core-s aft B,and through which tubes and openings the strandwires are threaded. These tubes are shown in Fig. 6, and curve slightly toward each other. The idler-pinions P and PG are studded to and properly supported by standard P9, (shown in Figs` l and'2,) which standard is also formed to support the outer extending end of coreshaftB. The circular rotating head P3 is partially surrounded by a pair of curved arms, P7 and P8, (shown in Fig. 9,) and are for theA purpose ol' engaging with the rear extending arm ot'pawl P4. to hold it disengaged from the ratchet-wheel P2 one-halt'lhe time-one-eighth at one side and three-eighths at the other-so that as the head P3 rotates` continuously the annular gear P will be rotated intermittently and only one-halt' the time; but when the annular gear P does rotate it rotates thespur-gear Pand coreshat't B at twice the speed as shat't B and head P3 by means ot' the intermediate pinions, P5 and P, as the annular gear P has twice the number ot teeth as spur-gear P. A pair ot' wooden friction-ports, F F, held by long bolts against the sides of annular gear P,ser\'e as a brake to prevent said gear from rotating only when compelled t0 by the engagement of pawl P4 with ratchet-wheel P2.

To the outer end or side of spur-gear G2 is attached a strandwire spool-yoke, R, arranged to hold two spools ot' plain strand-wire, and :is adapted to rotate with said gear and shalt B. The strand wires are fed from these spools through hollow shaft B and through the openings in coreshai't B', emerging from the curved tubes B2, and from thence piss to head H, where they are supplied with barbs, and thence between a plate and compress-roll and over a take-up wheel to the twister and spooler.

The head H, where the barbs are attached tov the strand-wires, is'constructed in two partsan upper and a lower partweach part having portions H and H2 of its fronthinged thereto, so said t'ront portions H and H2 may be opened to get at the working parts within the head, which are nearly covered by them when closed. (See Fig. 10.) The lower part ot' head H holds the cutting-off die d', and the upper part of said head holds the sliding head H3, which iu turn holds the cutting-off punchd by means ot' the wedgeshaped block d2 and screws di. (See Figs. l0 and 13.)

Vithin and near one end ot' the hinged portions Hl and H2 of head H are a pair of short shafts, having heads X and X on their facing ends and pinions J and J near their central parts, which pinions project from said hinged portions ofhead H into channels formed therein, as shown in Fig. l0. The toothed racks D5 and D6 are placed in channels in the side ofhead Hin such manner as to engage with the pinions J and J when the parts H' and H2 are closed to head H,and as said racks are reciprocated they will in turn operate the hooked fingers Zand Z. rlhese racks D5 and D6 are held in their respective (channels by plates n and a', secured to head H, and re spectively to the hinged portions H2 and H', which serves to hold said hinged portions clasped to head H as well as to hold in the racks. Other screws are also used to properly hold the parts H and HZ to head H.

Fig. ll shows guide-plates Z2, Z, Z, and Z5 as they would appear placed between the upperand lower parts ot' head H when thehinged portions H and H2 are closed. The upper part ot' head H is broken away in said ligure to more clearly show said parts. The strandwires emerge from the ends of the tubes B2 and pass over the upper surt'ace of guideplate Z2, under guide-plates Z5, and on to tlze take-up. The barb b is fed in t'rom the back ot' head H through guide-tube Y at right an'- gles with the two strand-wires 4and emerges from between the guideplates Z3 and Z* in their crotch, and out over plate Z2, and between the'twostrandwires, (see Figs. l0, 1l, and 14,) and under linger t, which is shown in Figs. l

Aand 2 which finger covers late Z2 and forms an upper guide for the barb in connection with plate Z2. When the part Hl otA head H is closed to head H, the oscillating head X stands immediately over guide-plate Z3, and in such position that the hooked barbing-tinger Z, attached to it, will oscillate between the two plates Z3 Z". \Vhen the part H2 of head H is closed to head H, the ost-.illatinghead X, having theA barbing-tinger Z attachedto it, stands immediately under plate Z2, and in such position that said iinger may oseillate between said plate and tinger t above it. At'ter the barb-wire is thus fed in between the two strand-wires, the core-shaft B, having the tubes B, from which the strand-wires emerge, rotates oneAhalt' way around, to cross the strand-wires in front of the barb` as shown in Fig. 14, and the punch d then descends just far enough to hold the barbing-wire be- IOO i aiaioe a tween it and the die` d below while the barb is being interwoven between the' three several twists of the two strand-wires, but not cut it loose until the barb has undergone such process and becomes thoroughly attached. The two strand-wires having thus been crossed the first time, the hooked barbing-tinger Z then oscillates forward, catches the outer extendling loose end of the barb in the hollow on its 1o end, and carries it forward and bends it around into the crotch of the cross of the strand-wires, as shown by the dotted lines l in Fig. 14. Core-shaft BZ-again rotates onehalf way around to cross the strand-wires again forward ofthe barb just bent into their last cross, as shown by thedotted lines in said ligure. The hooked barbing-iinger Z then oscillates and catches the outer extending end of the barb-prod and carries it forward from its position shown by dotted lines 1 in said ligure to the position shown by dotted lines 2, to lie in the crotch of the cross thus formed in the strandfwires, thus weaving the barb in be tween the three consecutive twists or crosses of the strand-wires to form the finished barbed strand-wires. (Shown in Fig. l5.) After the portion of the barbingwire iorining the barb has thus been attached to the strandwires, the punch d descends a little farther to shear the barb loose in adiagonal manner from the barbing-wire, so that the stra1'1d-wires may be drawn along bythe take-up I'ar enough for the next succeeding barb to be placed on in like manner.

Whilea barb is being applied to the strandwires it is necessary that they should be held tirmly and in a fixed position immediately back of the place where the barb is to be so attached, so the proper twists or crosses may be thus given to them. and prevent the twists from extending any farther beyond than to the place where they are so held. This is accomplished by means of a punch, S6, (shown in Figs. l and 2,) which is operated to be driven forward to press against the two strandwires immediatelyback of the place where the barb is to be applied, and in between the guides Z'l and Z5, holding them` firmly against the head H while the barb is being applied to thestrand wires.

The mechanism that operates the punch SG is constructed in such manner that it will withdraw said punch from contact with the strand-,wires immediately aftereach barb is thus attached to permit the strand-wires with the barb attached, to be drawn forward by the take-up, so the next succeeding barb can be attached. This punch S is arranged to be thus reciprocated in the head Sl, which attaches to the lower part of the part H2 of head H, and is caused to so reciprocate by means ot' the channeled cani S on shaft S, Fig. l, through the medium of lever Si and link S5, the said lever being pivoted to the outer end ot' arm Si', and having a friction-roller to travel in the channel of cam S. This cam is so set on shaft S that it will cause punch S to press on the strand-wires only while the barb is thus being interwoven in the twists of the strand-wires, and then recede so they may be drawn on through the machine, as stated.

The mechanism for reci procatingthe toothed racks D5 and D, as stated, to oscillate the hooked barbing-iingers and the shafts and heads to which they are attached, ils shown in Fig. 7, and consists ofa pair of bars, DD'Z, attached to said racks at their inner ends, and arranged to slide in recesses in standard A2 at their outer ends. Bar D2, which connects with rack D6, has a depending arm to engage with the cam D", and bar D has an upturned extend ing arm to engage with the cam lD. These cams are each keyed on shaft S, and when rotated will, by means of their engagement with said arms, reciprocate the racks D5 and Di in one direction, but in opposite directions from each other, to oscillate the hooked barbingfingers to weave a barb between the twists of thestrand-wires, as stated. A pair of springs, arranged to draw ou the bars D and D2, reciprocate said racks in the other direction to return the two hooked barbinglingers to their initial position to manipulate the next succeeding barb, as stated.

The mechanism for feeding in the barbingwire b is shown in Fig. 3, and consists of a reciprocating head, c, having a pair of rollers, c c', over which the barb-wire travels, and a pair of depending spring-dogs, c`l c2, immediately over said rollers, between which and said rollers the barb-wire b passes. The reciprocating head crests in proper gudeways, E, secured to the back ot' head H, and is caused to reciprocate by means of cam S', keyed on shaft S, and a coil-spring connecting the outer end of lever c7 with the bed of the machine or the door below through the medium of said pivoted lever el, having the upturned arm cB and pitmau c6, as shown in said figure. l/Vhen cam S rotates, it will, through the medium of rocking lever c7, oscillate arm c, and, by means of the pitlnan connecting said arm with said head, reciprocate it. W'hen it .moves i'orward,the barb-wire b will lbe grasped by the spring-dogs cIl cZ between them and the rollers c c', and fed forward far enough to furnish wire enough fora barb. When said head moves backward, the wire b remains stationary as the dogs c2 c2, stand, so they release their grip and slide on it backward ready for a new grip on the wire when the head c moves forward again. The barbingwire is thus fed intofthe machine from the rear of head H, as before stated, through an opening in it, in an intermittent manner as needed, and at the right ti ine to deliver enough for a barb. A pair ot' grooved friction-blocks, c3 ci", such as are shown in Figse and 5, are arranged on the post c5, Figs. l and 3, and are given tension XOO IIC

by means of a set-screw through the head of 13o post c, through the medium ot' spring-cushion c, Fig. 3. These friction-blocks c3 c3 are arranged so the grooves in their faces will meet and so the wire will lie iu said grooves, and are for the purpose of holding the wire in its place and for straightening it as it is drawn or fed through between them. The stroke of the head c is regulated by means of the set-screw 01 in the outer end of arm c",

Fig. 3.

The lever H", which operates the cuttingoft punch d, is fulcrumed between a pair of ear-lugs on the upper end of head H. The front and shortest end of said lever passes through a mortise in the upper end of sliding head H3, which holds the said punch, while its rear end extends out over shaft S. (See Figs. 1, 7, 10', and 12.) The part of said lever H4 which is directly over shaft S has attached to its under side thedepending lug H5, as shown particularly in Fig. l2, to engage with and ride on cam H, keyed on shaft S, which ca m is ofthe proper' form to raise that end of said lever to cause the cuttin g-otf punch d to descend, as stated. The coil-spring shown in Fig. 12 will return said lever and punch after a barb has been severed from the barbing-wire. Whenthe strand-wires have thus been barbed, they pass out of the barbing part of the machine, first over the drag-wheel T and on farther to a twister and spooler, T2, as stated, as shown in Fig. 2, and they are drawn through the machine intermittently, so the barbs may be attached to them while they are still, and so the barbs may be placed on at equal distances apart from each other. This is accomplished by means of the waved cam R3, keyed on shaft S, and the pawl and ratchet mechanism shown in Figs. 1 and 2. The ratchet-wheel R of this mechanism is keyed on shaft K, as is also drag-wheel T, the shaftK being boxed to bed A, as shown in said figures. On shaft K, and at the side of ratchet-wheel R', is fulcrumed an oscillating lever, R2, which has a spring-pawl attached to its lower end to engage with the ratchet-teeth on the periphery of ratchet-wheel R,and apair offriction-rollers, r fr, studded to its upper end, between which the waved periphery of cam It3 rotates. When said cam rotates,it wi1l,by means of such connection,oscillate lever R2, which will,by means of its spring-pawl engaging with the ratchetteeth of wheel R', impart an intermittent forward rotary motion to the drag-wheel T, to intermittently take up the barbed strand-wires from the machine, as and for the purpose stated. The periphery of drag-wheel T is provided with a series of equidistant chambers for the reception of a series of removable lugs, V2, having V-shaped ends, in which the strand-wires lie in passing over said wheel, as shown in Figs. 1 and 2. These lugs V2 are removable, so they may be replaced when worn, and they furnish more certain means of drawing the strand-wires out of the machine by reason of the said lugs catching behind the barbs. As the barbed strand-wires pass from the head H, where they are barbed, to said drag-wheel,they pass between a grooved plate, V, and a compressor-roll, V, (shown in Figs. 1 and 2,) which plate and roll are supported on the bed A in the frame V3. Tension is given to t-he roll V by means of a pair of set-screws, m,and rubber cushion on, which bear against the sliding boxes of said roll. The plateVis grooved so the strand-wires will be pulled along in said grooves and under said roll for the purpose of causing said roll to press the strand-wires down into said groove in such manner as to bend the prods of the barbs laterally slightly, sothey may not drop out from between the strand-wires. Hollow shaft B is provided with an opening in its side, as shown invFig. 2, for convenience in threading the strand-wires through it. An eyelet, b', attaches to the standard A2 and serves as a guide for the barbing-wire, so it may properly enter the feed, as shown in Fig. I. When the dragwheel T draws out a certain quantity of tinished barbed wire, it is immediately taken up by that part of the machine commonly called the spooler and twister,77 which forms no part of this invention, as almost any of the ordinary spoolers and twisters will perform the service required in this machine. The finished product ot' this machine is shown in Fig. 15.

Having thus described our invention, what we claim as new, and desire to secure by Letters Patent, is as follows, to wit:

1. In the wire-barbiug machine described, the mechanism, substantially as shown and described, for supporting and intermittently twisting the strand-wires, consisting of the head P3, spring-pawl P, annular gear P, coreshaft B', having the extending tubes B2, spurgear P', and intermediate idler-pinions, I5 P, as and for the purpose set forth.

2. In the wire-barbing machine described, the mechanism, substantially as shown and described, for holding and cutting off 'the barbs from the barbing-wire, consisting of the die d', punch d, lever H", and cam H, arranged as set forth.

3. In the wire-barbing machine described, the mechanism, substantially as shown and described, for feeding the barbing wire in the machine and between the cutting-dies and strand-wires, consisting of the reciprocating head c, having the spring-dogs c2, and griprolls c', pitman c, lever c7, having the upturned arm o8, and cam S', in combination with the grooved friction-blocks c3 c3, spring and cushion at, supported on post c5, as and for the purpose set forth. x

4. In the wire-barbing machine described, the means, substantially as shown and described, for intermittently taking up the strand-wires after they have been barbed, consisting of the wheel T, having the inserted forked lugs V2, ratchet-wheel It', cam R3, and lever R2, having a spring-pawl to engage with ratchet-wheel It, and a pair of friction-rollers, r r, to engage cam R3, in combination with the means for compressing the barb and strand ICO IIO

wires, and for bending one of the barb-prods, consisting of the roller V and plate V', substantially as set forth.

5. In the wire-barbing machine described, the means, substantially as shown and described, for intermittently twisting the strandwires by rotating them one-half way around each time in the same direction, consisting of the head P3, springpawl P4, annular gear I?, core-shaft B', having the extending tubes B2, spur-gear P', and intermediate idler-pinions, P5 I, whereby the barbs may be interwoven between each of three consecutive twists of the strand-wires, in combination with the hooked barbingfingers Z Z' and their operating mechanism, as set forth.

6. In the wire-barbing machine described, the means, substantially as shown and de scribed, for holding the strand -wires in a fixed position within their guides in head H while they are being supplied with barbs, consisting ofthe punch S, connectingdink Si", lever S, and cam S2, arranged to operate in the manner specitied.

7. In the wire-barbing machine described, the mechanism, substantially as shown and described, for feeding the barbing wire in the machine and between the cutting-dies and strandwires, consisting of the reciprocating head c, having the springdogs c2, and griprolls c', pitman c", lever c7, having the upturned arm o8, and cam S', arranged as set forth.

S. In the wire-barbing machine described, the hooked barbing-iingers Z Z', in combination with the oscillating headsXX and their shafts, and pinions J J' and racks D5 D6, and

their operating mechanism, arrangel as and for the purpose set forth.

9. In a wire-barbing machine, the combination of the hooked barbing-ngers Z and Z', to weave the barbs between consecutive twists of a pair of strand-wires, means, substantially as shown and described, for oscillating them, and the means for intermittently crossing the strand-wires and holding them in a Xed position while the barbs are being applied, as set forth. v l

l0. In the wire-barbing machine described, the head H, having the hinged portions H' H2, and arranged to support the cutting-off dies d d', racks D5 D, pinions J J', oscillating heads X X', having the hooked fingers Z Z', and the guides Z2 Z3 Z* Z5, in the manner and for the purpose set forth.

l1. In the wireAbarbing machine described, the .combination of the stationary head H, having the die d', and parts H' H2, sliding head H, having the punch d, wedge-block d2, and screws d3 for securing said punch to said sliding bead, barbing-tingers Z and Z', and the means, substantially as shown and described, for operating said punch and die and barbing-fingers, as and for the purpose set forth.

l2. In a feeding mechanism for wire-barbing machines, the combination of the rollers c c', spring-dogs c2 ci, and reciprocating head c and their operating mechanism, as set forth.

MARGELLUS H. PITTS. ISRAEL It. VHITEMAN.

Witnesses:

J As. ELLs, WM. J. HUToHINs.

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